Flexible mineral insulated cable
By using materials such as aluminum-plastic composite tape, ethyl acrylate, and styrene-butadiene rubber in the cable, the flexibility and safety of the cable are enhanced, solving the problem of insufficient flexibility in traditional mineral-insulated cables and enabling effective wiring and protection in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional mineral-insulated cables have poor flexibility and are difficult to use in complex wiring environments.
The cable uses a flexible mineral layer made of aluminum-plastic composite tape as a sheath, combined with a fire-resistant layer made of ethyl acrylate, a tough strip made of styrene-butadiene rubber, and a protective layer made of abrasion-resistant rubber to enhance the cable's flexibility and protective performance.
It improves the flexibility and safety of the cable, enabling wiring in complex environments, and has flame-retardant and protective functions, while reducing rigidity and increasing service life.
Smart Images
Figure CN224020475U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable technical field more particularly to a kind of flexible mineral insulated cable. BACKGROUND
[0002] Cable is a kind of electrical product for transmitting power, signal or realizing electromagnetic energy conversion, cable is used as power transmission line in power system, for transmitting the electric energy generated by power plant, transformer substation or distribution station to different places of user, to be used by power consumer.
[0003] Traditional mineral insulated cable has certain limitation, and its flexibility is poor, since copper tube is used as sheath, the overall hardness of cable is large, and bending radius is usually large, in some complex wiring environment, such as the area of limited internal space of building, equipment connection line needing frequent bending, or when laying in narrow electrical cabinet, it will be greatly limited. UTILITY MODEL CONTENT
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a flexible mineral insulated cable to solve the problems in the above background art.
[0005] The utility model provides the following technical scheme: a kind of flexible mineral insulated cable, including multiple conductive core, filling layer and sheath, multiple the conductive core is all arranged in filling layer, the sheath is arranged at the outside of filling layer, the sheath includes fire resistance layer, the fire resistance layer is arranged at the outside of filling layer by the process of extrusion, the outside of fire resistance layer is provided with flexible mineral layer by the process of extrusion, the outside of flexible mineral layer is provided with protective layer by the process of extrusion.
[0006] As a further scheme of the utility model, the conductive core includes copper core, the outside of copper core is provided with insulating layer by the process of extrusion.
[0007] As a further scheme of the utility model, the length of insulating layer and copper core is equal, and the length of conductive core and sheath is equal.
[0008] As a further scheme of the utility model, the filling layer is provided with tenacity band, and the tenacity band is located at the center of multiple conductive core.
[0009] As a further scheme of the utility model, multiple the conductive core is annularly distributed with tenacity band as center.
[0010] The technical effects and advantages of the utility model are as follows:
[0011] 1. The utility model discloses a cable sheath made of a flexible mineral layer made of an aluminum plastic composite tape as the main material of the sheath, which can wrap the cable and prevent it from being eroded by moisture, chemicals and other external environments. The softness of the aluminum plastic composite tape is good, so the cable has good flexibility and can be laid in complex environments. The cable core is divided into multiple strands, which can reduce the hardness of the core and increase the softness of the cable.
[0012] 2. The utility model discloses a fire-resistant layer made of ethyl acrylate as the raw material, which is added inside the sheath to achieve flame retardation of the cable, avoid spontaneous combustion of the cable and improve the safety of use.
[0013] 3. The utility model discloses a flexible tape made of butadiene styrene rubber as the raw material, which is added inside the cable to increase the elasticity and flexibility of the cable and improve the use effect of the cable. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a perspective structural schematic view of the utility model.
[0015] Fig. 2 It is a sectional view structural schematic view of the utility model.
[0016] Fig. 3 It is a conductive core structure schematic view of the utility model.
[0017] The reference signs are: 1, sheath; 2, conductive core; 3, flexible tape; 4, filling layer; 5, fire-resistant layer; 6, flexible mineral layer; 7, protective layer; 8, insulating layer. DETAILED DESCRIPTION
[0018] The technical solutions of the utility model will be described clearly and completely in combination with the drawings in the utility model. The forms of the structures described in the following embodiments are only examples, and the utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0019] Referring to Figs. 1-3 , the utility model provides a kind of flexible mineral insulation cable, including multiple conductive core 2, filling layer 4 and sheath 1, multiple conductive core 2 are all arranged in filling layer 4, the cable core is divided into multiple strands, which can reduce the hardness of the core and increase the softness of the cable.
[0020] The sheath 1 is provided outside the filling layer 4, the filling layer 4 is formed outside the plurality of conductive cores 2 by an extrusion process with polypropylene as a raw material, the polypropylene has good toughness and anti-aging performance, thereby the toughness of the cable can be increased;
[0021] The sheath 1 comprises a fireproof layer 5, the fireproof layer 5 is provided outside the filling layer 4 by an extrusion process, the fireproof layer 5 is made outside the filling layer 4 by an extrusion process with ethyl acrylate as a raw material, the ethyl acrylate has excellent flame-retardant performance, electrical performance, physical performance and wear resistance, thereby the flame-retardant of the cable can be realized, the self-ignition of the cable is avoided, and the safety in use is improved;
[0022] The outer side of the fireproof layer 5 is provided with a flexible mineral layer 6 by an extrusion process, the flexible mineral layer 6 is made outside the fireproof layer 5 by an extrusion process with an aluminum plastic composite belt as a raw material, the aluminum plastic composite belt can wrap the cable, prevent the cable from being eroded by the external environment such as moisture and chemicals, and meanwhile, the softness of the aluminum plastic composite belt is good, thereby the cable has good flexibility, and the cable can be wired in a complex environment;
[0023] The outer side of the flexible mineral layer 6 is provided with a protective layer 7 by an extrusion process, the protective layer 7 is made outside the flexible mineral layer 6 by an extrusion process with wear-resistant rubber as a raw material, the wear-resistant rubber has good wear resistance, thereby the service life of the sheath 1 can be increased.
[0024] In the utility model, the conductive core 2 comprises a copper core, the outer side of the copper core is provided with an insulating layer 8 by an extrusion process, the insulating layer 8 is formed outside the copper core by an extrusion process with polyvinyl chloride as a raw material, the polyvinyl chloride has excellent insulating performance, thereby the insulating property of the cable is realized;
[0025] The length of the insulating layer 8 is equal to that of the copper core, the length of the conductive core 2 is equal to that of the sheath 1, the filling layer 4 is provided with a toughness band 3, the toughness band 3 is located at the center of the plurality of conductive cores 2, the plurality of conductive cores 2 are distributed in a ring shape with the toughness band 3 as the center, the toughness band 3 is made in a cylindrical shape with styrene butadiene rubber as a raw material, the elasticity and toughness of the cable can be increased, and the use effect of the cable is improved;
[0026] The working principle of the utility model is as follows: firstly, the toughness band 3 is made in a cylindrical shape with styrene butadiene rubber as a raw material, then the insulating layer 8 is formed outside the copper core by an extrusion process with polyvinyl chloride as a raw material, thereby the conductive core 2 is made, subsequently, the plurality of conductive cores 2 are gathered with the toughness band 3 as the center, the filling layer 4 is formed outside the plurality of conductive cores 2 by an extrusion process with polypropylene as a raw material;
[0027] Subsequently, the fire-resistant layer 5 is made by extruding the outer side of the filling layer 4 using ethyl acrylate as a raw material, the ethyl acrylate has excellent flame-retardant performance, electrical performance, physical performance and wear resistance, so that the cable can be flame-retardant, the self-ignition phenomenon of the cable can be avoided, and the safety in use is improved, then the flexible mineral layer 6 is made by extruding the outer side of the fire-resistant layer 5 using an aluminum-plastic composite belt as a raw material, the aluminum-plastic composite belt can wrap the cable, prevent the cable from being eroded by the external environment such as moisture and chemical substances, and the softness of the aluminum-plastic composite belt is good, so that the cable has good flexibility, the cable can be wired in a complex environment, and finally the protective layer 7 is made by extruding the outer side of the flexible mineral layer 6 using wear-resistant rubber as a raw material, so that the cable is made.
[0028] Finally, it should be pointed out that in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;
[0029] The utility model discloses the embodiment of the drawings, only relate to the structure of the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other.
Claims
1. A flexible mineral-insulated cable, comprising multiple conductive cores (2), a filling layer (4), and a sheath (1), characterized in that: Multiple conductive cores (2) are disposed within the filling layer (4), and the sheath (1) is disposed on the outside of the filling layer (4). The sheath (1) includes a refractory layer (5). The refractory layer (5) is disposed on the outside of the filling layer (4) by an extrusion process. A flexible mineral layer (6) is disposed on the outside of the refractory layer (5) by an extrusion process. A protective layer (7) is disposed on the outside of the flexible mineral layer (6) by an extrusion process.
2. The flexible mineral-insulated cable according to claim 1, characterized in that: The conductive core (2) includes a copper core, and an insulating layer (8) is provided on the outside of the copper core by an extrusion process.
3. A flexible mineral-insulated cable according to claim 2, characterized in that: The insulating layer (8) is the same length as the copper core, and the conductive core (2) is the same length as the sheath (1).
4. A flexible mineral-insulated cable according to claim 1, characterized in that: The filling layer (4) has a tough band (3) inside, and the tough band (3) is located at the center of multiple conductive cores (2).
5. A flexible mineral-insulated cable according to claim 4, characterized in that: Multiple conductive cores (2) are arranged in a ring around the ductile band (3).